/* Copyright (C) 2004 - 2006  db4objects Inc.  http://www.db4o.com

This file is part of the db4o open source object database.

db4o is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL 
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.

db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */
namespace Db4objects.Db4o.Ext
{
	/// <summary>
	/// this Exception is thrown during any of the db4o open calls
	/// if the database file is locked by another process.
	/// </summary>
	/// <remarks>
	/// this Exception is thrown during any of the db4o open calls
	/// if the database file is locked by another process.
	/// </remarks>
	/// <seealso cref="Db4objects.Db4o.Db4oFactory.OpenFile">Db4objects.Db4o.Db4oFactory.OpenFile
	/// 	</seealso>
	[System.Serializable]
	public class DatabaseFileLockedException : System.Exception
	{
		private string _databaseDescription;

		public DatabaseFileLockedException(string databaseDescription) : this(databaseDescription
			, null)
		{
		}

		public DatabaseFileLockedException(string databaseDescription, System.Exception cause
			) : base(Message(databaseDescription), cause)
		{
			_databaseDescription = databaseDescription;
		}

		public virtual string DatabaseDescription()
		{
			return _databaseDescription;
		}

		private static string Message(string databaseDescription)
		{
			return "Database locked: '" + databaseDescription + "'";
		}
	}
}
